What is CVE-2026-33582?

CVE-2026-33582 is a medium-severity vulnerability in Apache Answer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.5/10. Published 2026-06-09.

How severe is CVE-2026-33582?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Arbitrary file upload in Apache Answer

CVE-2026-33582

Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. A crafted TIFF image could trigger excessive memory allocation during image decoding, allowing an authenticated user to cause the server process to crash. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

Vulnerability class: Unrestricted File Upload

Published 2026-06-09 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.5th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.005 · change: -0.002

Affected products

Apache Answer
Apache Software Foundation Answer — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

lists.apache.org/thread/3sgpx4cwsgpnt66xv3cqvtc8z4st1kbq (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-33582?: CVE-2026-33582 is a medium-severity vulnerability in Apache Answer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.5/10. Published 2026-06-09.
How severe is CVE-2026-33582?: Medium severity. CVSS v3 base score is 6.5 out of 10.